Security structure for propelling and/or retaining individuals designed for amusement, sport or training



FIG. 1 is a top and front side perspective view of a security structure for propelling and/or retaining individuals designed for amusement, spot or training;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a view similar to FIG. 1 illustrating the security structure of FIG. 1 from an angle to the left of FIG. 1;

FIG. 4 is a front elevational view of the security structure illustrated in FIG. 3;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a “security structure for propelling and/or retaining individuals designed for amusement, sport or training”, as shown and described. 